Territory



(No Model.)

0. W. BLACKBURN.

WHIFFLETREE HOOK.

No. 462,195. Patented Oct. 27,1891,

ATTORNEYS UNITED STATES PATENT OFFICE.

CHARLES IV. BLACKBURN, OF TOMBSTONE, ARIZONA TERRITORY, ASSIGNOR OFONE-HALF TO JOHN J. PATTON, OF SAME PLACE.

WHlFFLETREE-HOOK.

SPECIFICATION forming part of Letters Patent No. 462,195, dated October27, 1891.

Application filed January 17,1891. Serial No. 378,166. (No model.)

T (0% whom it may concern: ferrule, though, if desired, the end of thefer- Be it known that I, CHARLES \V. BLACK- rule might be otherwiseclosed. BURN, a citizen of the United States, residing The operation isas follows: Suppose tLe at Tombstone, in the county of Cochise and hookto be in its locked position, as shown in 55 Territory of Arizona, haveinvented certain Figs. 1 and 2, and it is desired to remove a new anduseful Improvements in IVhiftletreetrace therefrom, it will simply benecessary IIooks, of which the following is a specificafor the operatorto first pull upward on the tion, reference being had to theaccompanyhook B, which will rotate the sleeve 13 until ing drawings, inwhichthe pin E passes from the branch 11 of the 60 to Figure l is aninverted plan of theimproved slot 13 into the branch I), and then pullthe whiftletree-hook with the hook in its locked hook outward until thebranch slot 1) regisposition. Fig. 2 is a similar View with the terswith the screw or pin E, when the spring hook in its unlocked position.Fig.3 is asecwill rotate the sleeve and cause said branch tion on line XX, Fig. 1. Fig. A is a view of b'to receive the pin,after which the hookwill 65 15 the parts disconnected. Fig.5isan end view, be locked in itsopen position, as shown in the hook being shown locked in full lines andFig. 2. The hook will remain in this position swung up into its unlockedposition in dotted until it is again desired to attach the trace, lines.which is accomplished by passing its end onto The invention consists incertain improvethe hook, then turning the hook down to dis- 7o ments inwhiffietree-hooks, the object being to engage pin E and branch slot Z),then pushprovide a book which will securely lock the ing the hook andsleeve inward until branch trace against accidental displacement. slot baligns the pin, whereupon the spring The invention consists in theconstruction will rotate the sleeve till the end of the said andarrangement of parts, as will be hereinbranch strikes the pin E, inwhich event the 75 after described and claimed. hook will be locked frombeing accidentally A represents the end of a whiffletree promovedoutward and releasing the trace. The vided with a ferrule A at its outerend. lug or projection 11 will now project into the Upon this ferruleturns and slides the sleeve aperture C6 and tend to equalize the strainon I3, which carries the trace-hook Bon its outer the hook. In orderthat the spring D may be 80 end. The sleeve B is provided with bayonetprotected, I provide the outer sleeve F, which joint slot Bcomprisingalongitudinal branch fits over the collar O and sleeve B, asorewf b and two parallel transverse branches b securing it in place.The said outer sleeve of which the branch 13 is the longer. is providedwith an openi11gf,through which O is a collar secured fixedly by a screw0 the screw or pin E is passed into the ferrule 85 upon the inner end ofthe ferrule A, to which or thimble A.

is connected one end of a spiral spring D, Various modifications of thedevice will sugsurrounding the ferrule and connected at its gestthemselves to the mechanic, and hence I other end to the sleeve B, sothat it exerts a do not restrict myself to the exact constructorsionalstrain on said sleeve to rotate it. A tion shown. 9 4o screw or pin Epasses through the bayonet- Havingthus described myinventiomwhat I jointslot B and completes the bayonet-joint. claim as new, and desire tosecure by Letters The trace-hook B is provided at its eX- Patent,istremity with an inward-extending lug orpro- 1. A whiffletree-hookconsisting in a ferjection b in alignment with an aperture a in ruleadapted to be secured on the end of a 95 5 the center of a flange A onthe outer end of whiffletree, a trace-hook at right angles to theferrule A and adapted to enter said apthe ferrule, having its inner armmounted to erture when the said hook is locked in its opslide in and outon said ferrule, and a pinerative position. This flange A is shownand-slot connection between the: said inner -separate from the ferrule Aand having a arm and the ferrule to lock the hook in its I00 screw a onits inner face, screwing into the inner or outer positions, the free endof the end of the whiffietree over the end of the said other arm of thebook being adapted to enter a trace-eye when the hook is slid outwardand to lock the trace when the hook is slid inward, substantially as setforth.

2., A whifi'letree-hook consisting in a ferrule, a trace-hook projectingforward therefrom and adapted to be swung upward and slid outward andinward at the end of its inner member on said ferrule, and a pin-andslotconnection between said inner member and the sleeve to limit both theswinging and the sliding movement of the hook, the end of the outermember of the hook being adapted to receive atrace-eye when the hook ismoved upward and outward, and to lock it when the hook is swung downwardand inward, substantially as set forth.

3. The combination, with a whiffietree, of a rotarylongitudinally-movable sleeve thereon provided with a trace-hook, apin-andslot connection for locking the sleeve in its in nermostposition, and a spring holding the pin and slot engaged, substantiallyas set forth.

4. A whiftletree-hook comprising an attaching thimble or ferrule, arotary sleeve adapted to slide in and out on the thirnble or ferrule andprovided with a hook the free extremity of which extends back adjacentto or across the end of the said thimble, and a bayonetjoint connectingsaid sleeve and thimble, sub stantially as set forth.

5. A whiftletree-hook comprising an attaching ferrule or thimlole, asleeve turning and sliding thereon and provided with a tracehook thefree end of which projects back adjacent to or across the outer end ofthe thimble, a bayonet-joint connection between the thiinble and sleeve,and a spiral spring on the thim ble, exerting a torsional strain on thesaid sleeve, substantially as set forth.

6. A whiffletree-hook comprisingan attaching ferrule or thilnble, asleeve rotating and sliding on the thiinlole and having a bayonetjointconnection therewith, a trace-hook projecting from the sleeve andextending back across the outer end of the thimble or ferrule and havingan inward-extending lug or extension, and the torsional spring actingonsaid sleeve, substantially as and for the purpose set forth.

7. A whiftletree-hook comprising an attaching ferrule or sleeve, asleeve turning and sliding thereon and having a bayonet-joint connectiontherewith to lock the sleeve in its inner or outer position, thetrace-hook extending back to the end of the ferrule, a collar on theinner end of the ferrule or thinlble, a spiral spring around saidferrule and connecting the collar and sleeve, and the outer casing orsleeve inclosing the collar and the sleeve, substantially as and for thepurpose set forth.

8. A whiffietree-hook comprising an attaching ferrule or sleeve, aflange at the outer end provided with an aperture, and a spring-rotatedsleeve on the ferrule, having a bayonetjoint connection therewith andprovided with a hook having an inward-extending lug or extensionregistering with said aperture, substantially as and for the purpose setforth.

CHARLES XV. BLACKBURN.

Witnesses:

WILLIAM REYNOLDS, B. A. PACKARD.

